"She shares how she is feeling, in the exact moment she is feeling it and she doesn't hold back.

"There's something powerful that happens in that, whether she is talking about her sex life or her periods - when she speaks about these things in a social situation you can see people almost look repelled, but then they move closer.

"She's extremely charasmatic because she makes you feel so welcome and warm and loved. She's just the most interesting person I think I've ever met."

Ms Vosniak spent eight months living with Jennifer and her 12-year-old daughter Sidney while the Hollywood director worked on the bizzare Bollywood creation - Hisss.

Hisss - variously described as being "about a woman who is a snake", a special effects-horror-love story-musical - quickly develops into an over-budget, over-blown nightmare.

Beneath the narrative arc of the unfolding Bollywood movie disaster, is the story of Lynch's own journey of personal redemption and discovery.

With incredible access, Ms Vozniak was able to capture the true character of Lynch and her struggle, 15-years after Lynch's first controversial foray into Hollywood with the 1993 film Boxing Helena.

"Basically anything that can go wrong on a film set goes wrong," Ms Vozniak says of Hisss.

"In the course of that Jennifer has an extremely interesting personal breakdown and a series of personal breakthroughs along the journey.

"It's about a woman who wants to have it all. She wants to be a film maker in her own right, not just David Lynch's daughter.

"She wants to have everything but she is struggling to get anything."

Hisss - with a triple "s" - eventually received scathing reviews in India, and Ms Lynch distanced herself from the final film.

But from it's ashes, Ms Vozniak has emerged with a fascinating character study which will screen at the Sydney Film Festival, which opens tomorrow.

It's Ms Vozniak's first film - and a journey in itself. When it failed to attract funding, Ms Vozniak moved to Europe to house sit while she whittled down more than 200 hours of footage filmed over eight months.

She's now working to finish her next project, a documentary about four of the original "real-life" superheroes in the world.

"These people go out dressed as super heroes of their own creation," she explains.

"They give themselves their own missions...and they go out and do good deeds in their communities and their home towns to redress the balance of things.

"None of them know each other.

"They were just sick of things going wrong in their home towns but they didn't have the means to address the problems in any other way.